6 pros.put("key.serializer", 7 "org.apache.kafka.common.serialization.StringSerializer");
时间: 2024-05-31 12:15:12 浏览: 11
这段代码是用于配置 Kafka Producer 的属性,其中 "key.serializer" 指定了 Producer 发送消息时使用的 key 的序列化器,这里使用的是 String 类型的序列化器。在 Kafka 中,Producer 发送的消息需要经过序列化后才能被传输到 Kafka Broker。因此,对于发送的消息中的 key 和 value,都需要指定序列化器。
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Write an essay about my option after graduation, 150 to 200 words.
Sure, I can help you with that.
After graduation, many students face the difficult decision of what to do next. Some may seek employment, while others may pursue further education. It is important to carefully consider all options and make an informed decision.
One option is to enter the workforce immediately. This can provide valuable experience and income, but it is important to consider potential career growth and opportunities for advancement. Networking and industry connections may also play a key role in job prospects.
Another option is to pursue further education, such as a graduate degree. This can lead to greater career opportunities and higher earnings potential, but it also requires a significant investment of time and money. Researching specific programs and career paths can help inform this decision.
It is also possible to take a gap year or pursue other nontraditional paths after graduation. Traveling, volunteering, and pursuing personal passions can provide valuable life experiences and skills that can be applied to future career endeavors.
Ultimately, the decision of what to do after graduation is a personal one that should be based on individual goals and values. Taking the time to carefully consider all options and weigh the pros and cons can help ensure a fulfilling and successful career path.
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java 将下列代码改进为可以遍历配置文件的用户名和密码roperties pros = new Properties(); FileInputStream fis = new FileInputStream("src\\good\\better\\key.txt"); pros.load(fis); String user = pros.getProperty("user"); String password = pros.getProperty("password"); System.out.println("user = " + user + ",password = " + password);
可以使用 Properties 类中的 `stringPropertyNames()` 方法获取配置文件中所有键的集合,然后遍历该集合获取每个键对应的值,代码如下:
```
Properties pros = new Properties();
FileInputStream fis = new FileInputStream("src\\good\\better\\key.txt");
pros.load(fis);
Set<String> keys = pros.stringPropertyNames();
for (String key : keys) {
String value = pros.getProperty(key);
System.out.println(key + " = " + value);
}
```
这样就能遍历配置文件中的所有键和对应的值了。
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